On Wednesday, March 25th, 2026 at 15:02, Tomi Valkeinen <[email protected]> wrote:
> XV20 is 2 plane 10 bit per component YCbCr 2x1 subsampled format. XV20 > is similar to the already existing P030 format, which is 2x2 subsampled. I don't know for sure the multi-planar YCbCr format name scheme we're using, but here are my observations looking at P, Q and S formats: - The first digit indicates sub-sampling. 0 for 2x2, 2 for 2x1, 4 for none. - The two other digits indicate bits for the Y channel, one of 10, 12, 16. One exception: Q401 indicates reverse order for Cb and Cr planes when compared to Q410. P030 is a bit of an outlier here since it's the only one with multiple Y samples. NV formats are also multi-planar but seem to use a completely separate scheme. Given the above I'd say what would make most sense to me is to use P230: keep the last two digits and change the first one to indicate that the only difference is the sub-sampling. Does that make sense to you? Simon
